基于FLAC3D的宝天高速公路K82段滑坡稳定性分析及治理措施研究  

Stability Analysis and Control Measures Research of Section K82 Landslide of Baotian Expressway based on FLAC3D

作　　者：金兆鑫 杨鹏 庞建平 贾存鹏 JIN Zhaoxin;YANG Peng;PANG Jianping;JIA Cunpeng(Lanzhou Petrochemical Polytechnic School of Civil Engineering,Lanzhou Gansu 730060,China;Gansu Transportation Planning Survey and Design Institute Co.,Ltd.,Lanzhou Gansu 730030,China)

机构地区：[1]兰州石化职业技术学院,甘肃兰州730060 [2]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030

出　　处：《工程质量》2021年第4期37-40,共4页Construction Quality

基　　金：兰州石化职业技术学院2019年教科研项目(KJ2019-15);兰州市市委组织部人才项目(2017-RC-52)。

摘　　要：通过分析宝天高速公路K82段滑坡的变形特征,采用FLAC3D软件对滑坡治理前后的稳定性和剪切变形做了分析。结果表明,在暴雨工况下该段滑坡安全系数为0.85,处于不稳定状态,采用削方减载+桩板墙+截排水的工程治理措施,治理后的滑坡无贯通的通剪切应力,稳定性安全系数为1.22,有效地改善了滑坡的滑动,充分证明了该工程治理方案是可行的。By analyzing the deformation characteristics of the landslide in section K82 of Baotian Expressway,the stability and shear deformation before and after the landslide treatment were analyzed by using FLAC3D software.The results show that the safety factor of the landslide is 0.85 under the condition of heavy rain,and it is in an unstable state,by adopting the engineering treatment measures of cutting square and reducing load+pile slab wall+cutting off drainage,the landslide after treatment has no through shear stress,and the safety factor of stability is 1.22,which effectively improves the sliding of the landslide and fully proves that the engineering treatment scheme is feasible.

关 键 词：FLAC3D 滑坡 稳定性 安全系数 

分 类 号：U418.55[交通运输工程—道路与铁道工程]